On 4 March 2024, carrying out activities to raise the awareness of operators about personal data processing, representatives of the Commissioner's Office Marko Milošević, Marin Cetinić, and Aleksandar Simić, held a training on the application of the Law on Personal Data Protection for employees of the Telecommunications Operator A1. About twenty people attended the training in person, while other employees had the opportunity to follow this training online. The emphasis of the training was on familiarization with the basic provisions of the law and the rights of individuals, and then, through various examples from the Commissioner's practice, the emphasis switched to the examples of the most common mistakes of operators, and the consequences of personal data breaches. Training's interactivity ended in removing numerous doubts about the application of the right to personal data protection.